Method, system and network equipment for circuit domain core network evolution
A network equipment and core network technology, applied in transmission systems, telephone communications, electrical components, etc., can solve problems such as waste of resources and difficulty in implementing customized service TAS, to ensure consistency, save development costs and investment costs, and protect effect of investment
Active Publication Date: 2009-11-04
HUAWEI TECH CO LTD
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Problems solved by technology
[0006] In order to implement traditional CS services, TAS in IMS needs to inherit all service processing capabilities in the existing CS network, including data, fax, SMS, intelligent services, monitoring, etc. in addition to voice services, so TAS needs a lot of repeated development , it is even more difficult to implement TAS for some operators' unique customized services, and the performance of MSC-S is basically unchanged when upgraded to EMSC, but new investment in TAS is required to provide traditional CS services, which is equivalent to the need for operators to upgrade existing CS services. Some CS services are invested in TAS, operators and equipment manufacturers have to invest in CS services twice, resulting in a waste of resources
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[0050] Such as figure 2 As shown, it is an architecture diagram of a kind of CS core network evolution provided by the embodiment of the present invention, as can be seen from the figure, the mobile switching center server MSC-S in the original CS core network is upgraded in order to enhance MSC-S, enhance In addition to the functions of the original MSC-S, the MSC-S also adds the function of the voice application server TAS in the IP multimedia subsystem IMS network, and enhances the MSC-S to retain the interface between the original MSC-S and other CS network equipment. For example, the interface with BSS / RAN, HLR and SCP, as the TAS in the IMS network, the enhanced MSC-S extends the ISC interface with the IMS Core, where the main network device in the IMS Core is the call session control function device CSCF, users in the IMS network include VoBB (Voice Over Broadband users) users, VoBB users in the embodiment of the present invention include VoBB (EVBO), VoBB (HSPA), VoBB...
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The invention relates to the technical field of mobile communication technology, in particular to a method, a system and network equipment for circuit domain core network evolution. The evolution method comprises the following steps: a reinforced MSC-Server is connected with an IMS network, TAS, a voice application server in the IMS network, is used for providing voice service for a user in the IMS network, wherein the reinforced MSC-Server is obtained by upgrading a mobile switching center server (MSC-Server) in a CS core network and has the function of TAS in an IP multi media sub system (IMS); for the original service request launched by the CS user who signs a new service, the service treatment is carried out by the reinforced MSC-Server, for the new service request launched by the CS user who signs a new service, the reinforced MSC-Server sends the new service request to the application server corresponding to the IMS network for treatment.
Description
technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, system and network equipment for the evolution of a circuit domain core network. Background technique [0002] The traditional Circuit Switched (hereinafter referred to as CS) is used to provide users with circuit-type service connections, and the Mobile Switched Center (hereinafter referred to as MSC) in the circuit domain is responsible for completing the switching and signaling of circuit-switched services Control function, under the framework of separation of bearer and control, the mobile switching center can be divided into mobile switching center server (MSC-Server, hereinafter referred to as MSC-S) and circuit switched media gateway (CS-MGW), the circuit domain also includes such as Home location register HLR, visitor location register VLR and other devices, among which MSC-S is the core device of the CS core network, and is used to provide ...
Claims
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IPC IPC(8): H04W88/14H04W92/02
CPCH04L29/06217H04L65/103H04M7/123H04L65/1016H04L29/06244H04L65/104H04L29/06265H04W92/02
Inventor 朱浩鹏姜涛陈国荣李世军王永德陈群辉
Owner HUAWEI TECH CO LTD